ASTROSAT CZTI

Data Quality Report

Orbit 10383

Creation date: 2024-06-27T15:58:42.588801
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A03_073T01_9000001498_10383cztM0_level2.evt modeM0/AS1A03_073T01_9000001498_10383cztM0_level2_quad_clean.evt
Size (bytes)395,383,68075,732,480
Size377.1 MB 72.2 MB
Events in quadrant A2,662,776478,677
Events in quadrant B2,771,241448,322
Events in quadrant C2,517,907489,455
Events in quadrant D3,636,365481,068

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A063
B063
C063
D063

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0244115
B0244120
C0244118
D0236110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02461312789
B02803816226
C02512313417
D03265418140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5694490.860555%
B5423731.346118%
C5746160.278455%
D5691340.597435%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 6974 6480 1 1 0.01% 0.02%
B 6974 6248 18 18 0.26% 0.29%
C 6974 6490 0 0 0.00% 0.00%
D 6974 6199 20 20 0.29% 0.32%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 4 2 47151 341.41 663 650 136.2
A 5 16 44389 321.13 663 650 136.2
A 13 251 13075 91.22 663 650 136.2
B 4 239 154055 1252.31 631 614 122.5
B 11 51 76637 620.46 631 614 122.5
B 6 51 46314 372.98 631 614 122.5
C 14 234 12068 76.1 642 644 150.1
C 13 61 4797 27.67 642 644 150.1
C 14 67 2137 9.95 642 644 150.1
D 8 195 674491 4413.93 627 609 152.7
D 1 20 306919 2006.33 627 609 152.7
D 2 33 103985 677.11 627 609 152.7

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter